Section C: Calculating the total multimode link loss

The total calculated link loss includes the following values:

• All calculated component mean losses.
• Three times the square root of the sum of the calculated component variances.
• The higher-order mode loss. This loss, induced by the connectors and the first few hundred meters of each link, is assigned a constant value, depending on the trunk fiber size.
  • For 50.0-μm trunk fiber, use 1.5 dB.
  • For 62.5-μm trunk fiber, use 1.0 dB.